1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "HTMLImageElement.h"
33
34 #include "Document.h"
35 #include "Frame.h"
36 #include "HTMLNames.h"
37
38 #include "V8Binding.h"
39 #include "V8Proxy.h"
40
41 #include <wtf/RefPtr.h>
42
43 namespace WebCore {
44
CALLBACK_FUNC_DECL(HTMLImageElementConstructor)45 CALLBACK_FUNC_DECL(HTMLImageElementConstructor)
46 {
47 INC_STATS("DOM.HTMLImageElement.Contructor");
48
49 if (!args.IsConstructCall())
50 return throwError("DOM object constructor cannot be called as a function.");
51
52 Frame* frame = V8Proxy::retrieveFrameForCurrentContext();
53 if (!frame)
54 return throwError("Image constructor associated frame is unavailable", V8Proxy::ReferenceError);
55
56 Document* document = frame->document();
57 if (!document)
58 return throwError("Image constructor associated document is unavailable", V8Proxy::ReferenceError);
59
60 // Make sure the document is added to the DOM Node map. Otherwise, the HTMLImageElement instance
61 // may end up being the only node in the map and get garbage-ccollected prematurely.
62 V8DOMWrapper::convertNodeToV8Object(document);
63
64 RefPtr<HTMLImageElement> image = new HTMLImageElement(HTMLNames::imgTag, document);
65 if (args.Length() > 0) {
66 image->setWidth(toInt32(args[0]));
67 if (args.Length() > 1)
68 image->setHeight(toInt32(args[1]));
69 }
70
71 V8DOMWrapper::setDOMWrapper(args.Holder(), V8ClassIndex::ToInt(V8ClassIndex::NODE), image.get());
72 image->ref();
73 V8DOMWrapper::setJSWrapperForDOMNode(image.get(), v8::Persistent<v8::Object>::New(args.Holder()));
74 return args.Holder();
75 }
76
77 } // namespace WebCore
78